CN1207211A - Socket - Google Patents
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- Publication number
- CN1207211A CN1207211A CN97191627A CN97191627A CN1207211A CN 1207211 A CN1207211 A CN 1207211A CN 97191627 A CN97191627 A CN 97191627A CN 97191627 A CN97191627 A CN 97191627A CN 1207211 A CN1207211 A CN 1207211A
- Authority
- CN
- China
- Prior art keywords
- voltage
- detection circuit
- impedance
- designed
- socket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/12—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to undesired approach to, or touching of, live parts by living beings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/44—Means for preventing access to live contacts
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
- Emergency Protection Circuit Devices (AREA)
- Dry Shavers And Clippers (AREA)
- Connecting Device With Holders (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Cable Accessories (AREA)
- Spark Plugs (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention concerns a socket (1) in which a switching device (11) switches voltage from the supply side (3) through to the consumer side (4) only when a consumer (2) is provided. A measuring device (5), which is supplied with power, comprises a direct current test circuit (7) and an alternating current test circuit (8). Both test circuits attempt to pass measuring currents over a connected load. The alternating current test circuit (8) operates at higher frequencies than the mains frequency. An evaluation circuit (9) is designed to decide on the basis of predetermined criteria and measured values in a logical AND connection whether switch contacts of the switching device (11) are to be closed.
Description
The present invention relates to a kind of socket, in this socket, only when being connected with electrical appliance, the voltage of power end could be communicated to the electrical appliance end by means of a switchgear.Also have only after electrical appliance is communicated with, jack is release voltage, and this class technical solution can realize in bus system that this system is used for transmitting an operational order (DE-U-9 312 528) of socket.Can realize that thus generally speaking, socket does not have electricity, and when children touch unintentionally, perhaps carry out interior decoration (socket) or when cover plate is backed out, also can not touch current-carrying part as the adult.
The objective of the invention is to, realize not charged this idea of operational order that does not depend on outside input of socket.
The objective of the invention is to realize by the described socket of claim 1.In this case, the measurement mechanism of energising has one and is its dc detection circuit that designs, electric current continues to flow through a load that can be communicated with, at this, dc detection circuit is designed to, and may produce the dangerous low detection voltage of voltage to the impedance of the load that connected with a ratio and measure, in addition, this measuring equipment is provided with the alternating current testing circuit, (impedance of load) with one than supply voltage higher or high-frequency but be lower than the detection voltage that may produce dangerous voltage and measure.She Ji counting circuit particularly adopts microprocessor or so-called CPU for this reason, and whether the measured value that utilizes criterion given in advance and imported by measurement mechanism decides the contact of switchgear to answer closed.
Owing to flow into and flow out the cause of total current between the lead of being monitored, when the failure current protection switch akinesia that connected, this class socket can also provide the protection to danger.This class situation for example can appear at, as the children for the earth insulation, when inserting the socket that touches connection phase line and loop line owing to nail.
So far, people seek and utilize so-called protection cover (shutter) to avoid this class danger, wherein as long as meanwhile do not insert contact in connecting hole, as plug and latch, just utilize mechanical means to close jack.Yet the socket that goes out mentioned herein will insure at the protective cover that can be competent in specific standard under the rough sledding than this class.Be fit to criterion given in advance, can for example in " electric current is to the effect of people and edibility animal " book that GottfriedBieglmeier showed, find at document.
In fact, when the dc detection circuit of measurement mechanism be favourable during with 5 volts voltage power supply.For the AC detection circuit of measurement mechanism, for calculating impedance behind certain hour, the selection frequency is 10KHz, detecting voltage, to be 5 volts be favourable.
More advantageously, come the designing and calculating circuit like this, promptly when using dc detection circuit measured impedance 1, in logical annexation formula greater than 500 ohm
The time, circuit is disconnected, and is determined by AC detection circuit in this impedance 2.Obstructed outage scope, corresponding with relevant human criterion.This criterion is also applicable to other biology.
The present invention is described in further detail for the embodiment that illustrates roughly by means of accompanying drawing below.
A socket 1 shown in Fig. 1 is connected with an electrical appliance 2 on it.At supply side, be typically provided with nipple, perhaps also can adopt non-threaded joint, be provided with the jack 4 that is used for (holding) plug pin in electrical appliance side 4.Be understood that, also can be the plug assembly of any one type, as long as its meaning is to guarantee to remain the safety of Connection Element at this socket.
Measurement mechanism 5 is by a power supply 6 power supplies.Measurement mechanism 5 has a dc detection circuit 7 and an AC detection circuit 8.Dc detection circuit 7 and AC detection circuit 8 and counting circuit 9 co-operation.Counting circuit 9 can be made on the basis of microprocessor, perhaps generally adopts a CPU as data processing equipment.When the measured value of counting circuit 9 according to dc detection circuit 7 and AC detection circuit 8, compare with given criterion, judge when satisfying safety condition, just start reactor, these reactor control switch device 11 conductings are just connected.Socket 1 has the joint that is used for phase line L, neutral line N and (ground connection) safety lead-in wire PE at supply side 3.Among the figure, be connected with an electrical appliance 2 in electrical appliance side 4, its equivalent circuit diagram is represented by a resistance 12.Power unit 6 provides auxiliary circuit voltage to reactor 10, counting circuit 9, dc detection circuit 7 and AC detection circuit 8.
By dc detection circuit 7 measured impedance 1 greater than 500 ohm, i.e. impedance 1＞500 Ω; Logical annexation formula
Satisfy these two conditions and just be defined as the outage scope, it meets the criterion of identification about the people.Outside the outage scope, all connect.Selection criterion is promptly considered different height like this, for example children and adult; Perhaps, consider the dried moist of skin according to use occasion.Minimum and maximum that correspondingly can impedance given in advance; utilize direct voltage and can select like this by dc detection circuit, consider that promptly claimed organism bears the ability of electric current (alternating current of direct current and 10KHz) injury by the measurement point that AC detection circuit utilizes alternating voltage to detect.For personal safety, should adopt the detection electric current that is starkly lower than the discharge limit (Losla β grenze).
Claims (4)
1. a socket (1) wherein has only when having predetermined electrical appliance, and voltage just can be connected to electricity consumption side (4) by means of a switchgear (11) by supply side (3),
-for this reason, the measurement mechanism (5) that is given a voltage by feedback has a dc detection circuit (7), this dc detection circuit is designed to, for measuring the load (2) that electric current is flowed through to be communicated with, at this, dc detection circuit (7) is designed to, and the impedance of the load that is communicated with may produce the dangerous low detection voltage of voltage with a ratio and measure
-for this reason, the AC detection circuit (8) of measurement mechanism (5) is designed to, and the impedance of the load that is communicated with may produce the dangerous low detection voltage of voltage than supply voltage height, voltage ratio at least with a frequency and measure,
-at this, analysis circuit (9) is designed to, and according to given criterion and measured value, determines in a logic determines process, and whether the contact of switchgear (1) can be closed.
2. according to the described socket of claim 1, it is characterized in that the dc detection circuit (7) of measurement mechanism (5) comes work with the voltage of the 5V order of magnitude.
3. according to claim 1 or 2 described sockets, it is characterized in that the AC detection circuit (8) of measurement mechanism (5) is come work with the frequency of the 10KHz order of magnitude, the measuring voltage of 5 voltage magnitudes, and be designed in the regular hour, calculate impedance.
4. according to each described socket in the claim 1 to 3, it is characterized in that, described analysis circuit (9) is designed to, when by the measured impedance 1 of dc detection circuit, satisfy relational expression impedance 1＞500 Ω, with adopt logicals to be connected by the measured impedance of AC detection circuit (8) 2, satisfy relational expression
The time, just be not communicated with.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19601883A DE19601883A1 (en) | 1996-01-19 | 1996-01-19 | socket |
| DE19601883.8 | 1996-01-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1207211A true CN1207211A (en) | 1999-02-03 |
| CN1097864C CN1097864C (en) | 2003-01-01 |
Family
ID=7783192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97191627A Expired - Fee Related CN1097864C (en) | 1996-01-19 | 1997-01-08 | Socket |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US6038115A (en) |
| EP (1) | EP0875082B1 (en) |
| JP (1) | JP2000503838A (en) |
| CN (1) | CN1097864C (en) |
| AT (1) | ATE185452T1 (en) |
| AU (1) | AU713689B2 (en) |
| CA (1) | CA2243466A1 (en) |
| DE (2) | DE19601883A1 (en) |
| WO (1) | WO1997026687A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100338823C (en) * | 2003-09-03 | 2007-09-19 | 金宝电子工业股份有限公司 | Shared monitor for audiovisual interface socket and earphone cord socket and method thereof |
| CN101916977A (en) * | 2010-07-30 | 2010-12-15 | 纽福克斯光电科技（上海）有限公司 | Power socket protection circuit |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003059216A (en) * | 2001-08-16 | 2003-02-28 | Internatl Business Mach Corp <Ibm> | Hard disk drive, data storage/reproducing device, head movement controller, and head movement control method |
| US6683489B1 (en) * | 2001-09-27 | 2004-01-27 | Applied Micro Circuits Corporation | Methods and apparatus for generating a supply-independent and temperature-stable bias current |
| FR2838830B1 (en) * | 2002-04-19 | 2004-09-10 | Schneider Electric Ind Sa | DEVICE AND METHOD FOR DETECTING AN ELECTRICAL CHARGE, AND ELECTRIC APPARATUS COMPRISING SUCH A DEVICE |
| ITBG20030032A1 (en) * | 2003-05-09 | 2004-11-10 | Armando Iaquinangelo | DEVICE FOR THE MANAGEMENT OF ELECTRIC SOCKETS. |
| US7505237B2 (en) * | 2005-10-05 | 2009-03-17 | Energy Safe Technologies, Inc. | Electrical safety outlet |
| DE102005061845B4 (en) * | 2005-12-23 | 2013-07-18 | Siemens Aktiengesellschaft | Device for powering field devices |
| US7800251B2 (en) * | 2007-10-18 | 2010-09-21 | Hammerhead International, Llc | System and method for load control |
| DE102007054297A1 (en) * | 2007-11-09 | 2009-05-14 | Siemens Ag | Fuse load circuit breaker for e.g. protecting consumer, has integrated resistance measuring instrument with current generator for producing test current, where instrument measures resistance of fuse |
| US8139337B2 (en) * | 2008-09-23 | 2012-03-20 | Energy Safe Technologies, Inc. | Systems and methods for reducing electrically-caused fires in wiring devices |
| US20100073839A1 (en) * | 2008-09-23 | 2010-03-25 | Michael Baxter | Systems and Methods for Detecting Unsafe Thermal Conditions in Wiring Devices |
| US20120078546A1 (en) * | 2010-09-28 | 2012-03-29 | Maxim Integrated Products, Inc. | Load-side voltage detection via electric metering processing |
| LU92056B1 (en) * | 2012-08-06 | 2014-02-07 | First Invent Sarl | Electrical protection circuit |
| CN109687587B (en) * | 2019-01-02 | 2021-07-20 | 山东建筑大学 | Dormitory safety electricity utilization intelligent management system based on internet |
| US11431137B2 (en) | 2021-01-08 | 2022-08-30 | II Stephen Saxon Fuller | Electrical outlet with safety feature |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4316187A (en) * | 1981-01-09 | 1982-02-16 | Spencer George A | Current rating verification system |
| DE3508204A1 (en) * | 1985-03-08 | 1986-09-11 | Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar | CIRCUIT ARRANGEMENT FOR THE SIMULTANEOUS APPLICATION OF SEVERAL CONSUMERS TO A FEEDING NETWORK |
| DE3638737A1 (en) * | 1985-12-23 | 1987-07-23 | Stiftung Ordo | Totally screened automatic switching device |
| FR2609578B1 (en) * | 1987-01-14 | 1990-05-11 | Lepaillier Patrick | SECURITY SUPPLY DEVICE |
| DE3704021A1 (en) * | 1987-02-10 | 1988-08-18 | Bosch Gmbh Robert | Circuit for measuring the voltage drop across a variable resistor located in an alternating-current circuit |
| DE3728906A1 (en) * | 1987-08-29 | 1989-03-09 | Asea Brown Boveri | METHOD FOR DETECTING A CURRENT FLOWS CURRENTLY FLOWING FROM THE HUMAN BODY AND CIRCUIT ARRANGEMENT FOR IMPLEMENTING THE METHOD |
| GB2222039B (en) * | 1988-05-23 | 1992-07-01 | B & R Electrical Prod Ltd | Electrical safety apparatus |
| US4888660A (en) * | 1988-06-17 | 1989-12-19 | Academy Of Applied Science | Shock-proof mains voltage supply outlet and method |
| DE3836275A1 (en) * | 1988-10-25 | 1990-04-26 | Asea Brown Boveri | Method for preventing an operating current from flowing through human bodies |
| DE3909064A1 (en) * | 1989-03-20 | 1990-09-27 | Poelzl Helmut | Mains isolator |
| DE4139647A1 (en) * | 1991-12-02 | 1993-06-03 | Koch Dietmar | ARRANGEMENT FOR DISCONNECTING CONTROL DEVICES |
| DE4205517C2 (en) * | 1992-02-24 | 1994-02-17 | Norbert H L Dr Ing Koster | Current flow controlled switching device |
| DE9312528U1 (en) * | 1993-08-20 | 1993-10-07 | Siemens AG, 80333 München | Switchable socket |
| DE4400657C1 (en) * | 1994-01-12 | 1995-03-09 | Sonetta Gmbh | Arrangement for the mains disconnection of a control device |
-
1996
- 1996-01-19 DE DE19601883A patent/DE19601883A1/en not_active Withdrawn
-
1997
- 1997-01-08 DE DE59700526T patent/DE59700526D1/en not_active Expired - Fee Related
- 1997-01-08 CN CN97191627A patent/CN1097864C/en not_active Expired - Fee Related
- 1997-01-08 AT AT97904987T patent/ATE185452T1/en not_active IP Right Cessation
- 1997-01-08 AU AU18707/97A patent/AU713689B2/en not_active Ceased
- 1997-01-08 CA CA002243466A patent/CA2243466A1/en not_active Abandoned
- 1997-01-08 WO PCT/DE1997/000016 patent/WO1997026687A1/en active IP Right Grant
- 1997-01-08 EP EP97904987A patent/EP0875082B1/en not_active Expired - Lifetime
- 1997-01-08 JP JP9525583A patent/JP2000503838A/en active Pending
- 1997-01-08 US US09/117,009 patent/US6038115A/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100338823C (en) * | 2003-09-03 | 2007-09-19 | 金宝电子工业股份有限公司 | Shared monitor for audiovisual interface socket and earphone cord socket and method thereof |
| CN101916977A (en) * | 2010-07-30 | 2010-12-15 | 纽福克斯光电科技（上海）有限公司 | Power socket protection circuit |
| CN101916977B (en) * | 2010-07-30 | 2013-01-23 | 纽福克斯光电科技（上海）有限公司 | Power socket protection circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0875082B1 (en) | 1999-10-06 |
| DE19601883A1 (en) | 1997-07-24 |
| CN1097864C (en) | 2003-01-01 |
| AU713689B2 (en) | 1999-12-09 |
| US6038115A (en) | 2000-03-14 |
| AU1870797A (en) | 1997-08-11 |
| EP0875082A1 (en) | 1998-11-04 |
| ATE185452T1 (en) | 1999-10-15 |
| WO1997026687A1 (en) | 1997-07-24 |
| DE59700526D1 (en) | 1999-11-11 |
| JP2000503838A (en) | 2000-03-28 |
| CA2243466A1 (en) | 1997-07-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |